The study took place at Bangladesh Agricultural Research Institute’s Olericulture Division’s research farm from March 2021 to February 2022 (BARI). In a protected net house, we investigated the impact of five differ...The study took place at Bangladesh Agricultural Research Institute’s Olericulture Division’s research farm from March 2021 to February 2022 (BARI). In a protected net house, we investigated the impact of five different types of vegetables on various maturation stages, including tomato, broccoli, sweet pepper, cucumber, and netted melon. Vegetables cultivated under protected conditions in a transparent poly-film net house can improve quality, maturity, fruit size, and yield. When fruits and vegetables are picked before they are fully mature, they may stay green for longer, but they may not ripen to a satisfactory color and flavor, resulting in a loss of consumer confidence. Furthermore, because fruit continues to grow until the harvest, immature fruit will be smaller than mature fruit, reducing harvest yield. We tried to determine the right maturation stages in order to avoid product loss during our investigation. The tomato was found to be an appropriate size (6.5 cm length and 6.2 cm diameter), weight (84 g), TSS (4.5 percent), pH (4.3), “turning red”, and “tasty” at the week 5 stage, while the broccoli was found to be an appropriate size (12.0 cm length and 13.0 cm diameter), weight (360 g), and “green” color at the week 5 stage. At the week 6 stage, the nettled melon was found to be of appropriate size (15.2 cm length and 14.5 cm diameter), weight (800 g), TSS (10.8 percent), pH (6.3), “net fully developed” on the fruit skin and “much tasty,” while cucumber was found to be of appropriate size (8.8 - 10.8 cm length and 2.2 - 2.9 cm diameter), weight (61 - 88 g), TSS (3.8 - 4.1 percent), pH (6.3), “less powdery”. As a result, establishing the optimal maturity of our research will benefit both consumers and growers.展开更多
The study was conducted with 75 tomato entries at the farm of Olericulture Division, Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh during the winter season ...The study was conducted with 75 tomato entries at the farm of Olericulture Division, Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh during the winter season of 2020-21 to evaluate insect and disease reaction. Among the various insect and diseases of tomatoes, the late blight, TYLCV, bacterial wilt infection and leaf miner, fruit borer infestation are most common in Bangladesh. The TYLCV infection was observed 0% to 27% infection, while 47 entries showed zero percent infection. The range of bacterial wilt infection was 0% to 10% and zero percent infection was observed in 62 entries. In case of leaf miner infestation and fruit borer infestation, the range was 0% to 43% and 0% to 10%, respectively. Considering tolerance to late blight, TYLCV, bacterial wilt infection and leaf miner, fruit borer infestation, fruit size, fruit shape, plant growth nature, cluster nature of fruit, type of fruit ten entries AVTO 1010, AVTO 1706, AVTO 1713, AVTO 1829, AVTO 1909, AVTO 1911, AVTO 1915, AVTO 1921, AVTO 1954 and SLA 011 were found zero percent late blight, TYLCV, bacterial wilt infection and leaf miner, fruit borer infestation. So, these ten entries can be selected for disease and insect tolerant tomato varieties development as well as developing disease and insect tolerant hybrid tomato varieties.展开更多
An experiment was undertaken to identify suitable shade house for different high value vegetables during the winter season of 2019-20 at the research farm o</span><span style="font-family:Verdana;"&...An experiment was undertaken to identify suitable shade house for different high value vegetables during the winter season of 2019-20 at the research farm o</span><span style="font-family:Verdana;">f Olericulture Division, HRC, BARI, Gazipur</span><span style="font-family:Verdana;">. The experiment was randomized complete block design with 3 replications. Four vegetable varieties viz., tomato (V1), brinjal (V2), capsicum (V3), broccoli (V4) and 4 shading treatments</span> </span><span style="font-family:Verdana;">[1</span><span style="font-family:Verdana;">) UV stabilized polyethylene film with 60 mesh insect net along with green shade net (T1);</span><span style="font-family:Verdana;">2</span><span style="font-family:Verdana;">) UV stabilized polyethylene film with 60 mesh insect net (T2);</span><span style="font-family:Verdana;">3</span><span style="font-family:Verdana;">) 60 mesh insect net (T3) and </span><span style="font-family:Verdana;">4</span><span style="font-family:Verdana;">) Open field (control) (T4)] were included in this study. Different vegetables responded differently with the changes of shade house irrespective of different characters. Brinjal (V2) resulted </span><span style="font-family:Verdana;">in </span><span style="font-family:Verdana;">the maximum seed germination (93.58%) with </span><span style="font-family:Verdana;">the </span><span style="font-family:Verdana;">lowest</span><span style="font-family:Verdana;"> mortality (5.58%), in case of shading treatment, UV stabilized polyethylene film with 60 mesh insect net along with green shade net (T1) exhibited the maximum seed germination (94.83%) with lower mortality (3.33%). In case of combined effect, maximum seed germination (93.58%) and </span><span style="font-family:Verdana;">the </span><span style="font-family:Verdana;">lowest</span><span style="font-family:Verdana;"> mortality (2.08%) w</span><span style="font-family:Verdana;">ere</span><span style="font-family:Verdana;"> observed in V2T1. The tallest seedlings were produced in V3T1 at every growth stage (15 days, 20 days, 25 days, 30 days). The maximum no. of leaves was produced in V3T2. The minimum insect infestation was observed in V1T1, V1T2, V2T1, V2T2, V3T1, V3T2, V4T1, V4T2 (0.67% at 15 days and 20 days).展开更多
The study was undertaken to identify the suitable mulch paper for different high-value vegetables during the winter season of November 2019 to March 2020 at the Olericulture research field of Bangladesh Agricultural R...The study was undertaken to identify the suitable mulch paper for different high-value vegetables during the winter season of November 2019 to March 2020 at the Olericulture research field of Bangladesh Agricultural Research Institute, Gazipur, Bangladesh. The study was a randomized complete block design with 3 replications. Four vegetable varieties viz., tomato, brinjal, capsicum and broccoli and 3 mulch treatments viz., T1 = Silver over black mulch;T2 = Black mulch;T3 = No mulch were included in this study. Different vegetables responded differently with the changes of mulches irrespective of different characters. it was clear that fruit number, average fruit weight, fruit length, fruit diameter were strongly related to soil moisture content. The effect of different plastic mulches on fruit weight per plant and yield (t/ha) was significant. Mulching produced higher fruit yield per plant and fruit yield per hectare than for the control, indicating that the mulch had a positive effect in generating increased fruit yield. Silver over black plastic mulch produced the highest fruit yield viz., 98.05 t/ha (tomato), 54.11 t/ha (brinjal), 34.33 t/ha (capsicum), 26.09 t/ha (broccoli) followed by black and no mulches, while the control plot produced the lowest fruit yield.展开更多
In this study, the effects of different types of nethouses viz., NH1, NH2, and NH3, were investigated at the research farm of the Olericulture Division, Bangladesh Agricultural Research Institute (BARI) from Sep 2021 ...In this study, the effects of different types of nethouses viz., NH1, NH2, and NH3, were investigated at the research farm of the Olericulture Division, Bangladesh Agricultural Research Institute (BARI) from Sep 2021 to Mar 2022 and compared to control (open field) in terms of the incidence of white fly, aphid, leaf miners, mites, and eggplant shoot and fruit borer (ESFB). This study included six vegetables 1) Tomato, 2) Eggplant, 3) Sweet pepper, 4) Broccoli, 5) Cucumber;6) Okra, as well as four nethouse treatments: 1) UV stabilized transparent polyethylene film with 60 mesh insect net along with green shade net (NH1);2) UV stabilized transparent polyethylene film with 60 mesh insect net (NH2);3) 60 mesh insect net (NH3);4) Open field infestation of white fly, aphid, leaf miners, mites, and ESFB was observed under open field conditions followed by NH1 conditions, while the lower infestation was observed in NH2 and NH3 for all vegetables. From the study, we found the use of stabilized transparent polyethylene film with a 60 mesh insect nethouse provided a negative effect on the presence of different types of notorious insects on vegetables. So, this type of protected nethouse will provide a new dimension to producing safe and quality vegetables in Bangladesh.展开更多
The study was conducted with 75 tomato germplasm/lines at the farm of Olericulture Division, Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute, Gazipur, Bangladesh during the winter season...The study was conducted with 75 tomato germplasm/lines at the farm of Olericulture Division, Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute, Gazipur, Bangladesh during the winter season of 2020-21 to evaluate the WorldVeg tomato germplasm. The days to first harvest were varied from 106 to 116 days while twelve lines were harvested within 106 - 108 days. The number of fruits per plant varied from 11.7 to 71.3, while the range of single fruit weight was 16.4 - 186.6 g. Fruit yield per hectare was 15.7 - 150.4 t/ha where the highest fruit yield per hectare was obtained from the lines AVTO 1702 (150.40 t/ha), followed by AVTO 1409 (126.54 t/ha), AVTO 1010 (120.60 t/ha), AVTO 1712 (111.33 t/ha), AVTO 1711 (107.23 t/ha). The range of fruit length was observed 2.07 to 6.8 cm, while the fruit diameter was 1.9 to 7.4 cm. The range of pericarp thickness was 0.14 to 0.8 cm, while the range of number of locule was 2.0 to 8.2. The range of TSS level was 2.0% - 8.2%, while the shelf life of the tomato lines was recorded 5.2 to 10.3 days. Considering earliness, quantitative and qualitative characters, eleven WorldVeg Center tomato lines AVTO 1010, AVTO 1315, AVTO 1409, AVTO 1711, AVTO 1712, AVTO 1713, AVTO 1717, AVTO 1907, AVTO 1911, AVTO 1915 and AVTO 1921 were found promising. So, these eleven lines can be selected for further confirmation.展开更多
The study was conducted with 18 eggplant lines/variety at the farm of Olericulture Division, HRC, Bangladesh Agricultural Research Institute, Gazipur during the winter season of 2017-18 to develop new green type high ...The study was conducted with 18 eggplant lines/variety at the farm of Olericulture Division, HRC, Bangladesh Agricultural Research Institute, Gazipur during the winter season of 2017-18 to develop new green type high yielding OP variety having tolerance to eggplant fruit and shoot borer and bacterial wilt. The lines varied significantly for their response to all characters (P SM 083F required minimum 105 days to first harvest. Maximum marketable fruit number was obtained by SM083A (30.33). Heavy sized fruit was harvested by SM275 (175 g), followed by SM289 (170 g), SM279 (169 g), SM083E (165 g), SM253 (164 g). The range of fruit infection by BFSB was 10.33% - 19.007%, while lowest in SM262 (10.33%). In case of bacterial wilt (BW) infestation at field level performance, zero percent incidence was observed in SM262, SM275, SM279, SM291B. The yield range of eggplant lines was 18.62 - 43.36 t/ha. The highest fruit yield was recorded from the line SM 275 (43.36 t/ha), which was statistically similar with which was statistically similar with SM 279 (39.85 t/ha), SM 291B (38.59 t/ha), SM083B (38.42 t/ha), SM 262 (38.17 t/ha), SM 253 (37.43 t/ha). Considering earliness, tolerance to fruit infection by BFSB, bacterial wilt infestation, attractive fruit shape and fruit colour, the lines SM 275, SM 279, SM 291B, SM083B, SM 262, SM 253 were found promising. So these six lines can be selected for further confirmation.展开更多
The study was conducted at Olericulture Division, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh during summer season of 2021 to see the performances of yield and yield-related components of twelve he...The study was conducted at Olericulture Division, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh during summer season of 2021 to see the performances of yield and yield-related components of twelve heat tolerant tomato hybrids. Significant variation was expressed for days to first harvest (101.0 - 108.0 days), while maximum number of fruits per plant was calculated in F<sub>1</sub> 2101 and F<sub>1</sub> 2201 (9.5), followed by F<sub>1</sub> 203, F1 2001, F<sub>1</sub> 2303, F<sub>1</sub> 2401 (9.0). The highest single fruit weight was estimated in F<sub>1</sub> 2501 (195.5 g), followed by F<sub>1</sub> 2101 (119.0 g), F<sub>1</sub> 2201 (113.8 g), while the range was 33.1 - 195.5 g. The range of fruit yield was 7.9 - 38.7 t/ha, while higher-yielding hybrids were viz., F<sub>1</sub> 203 (27.7 t/ha), F<sub>1</sub> 2101 (35.5 t/ha), F<sub>1</sub> 2201 (33.9 t/ha) and F<sub>1</sub> 2501 (28.7 t/ha). Maximum TSS was produced by F<sub>1 </sub>2501 (5.9%), followed by BARI Hybrid Tomato-8 (5.1%), F<sub>1</sub> 1101, F<sub>1</sub> 1903 (5.0%), with a range of 4.0% - 5.9%, while TYLCV infection and leaf sucking pest infestation varied from 0.0% - 10.0% and 3.3% - 16.7%, respectively. Thus, based on the performances of different yield and yield contributing traits, the hybrids, viz., F<sub>1</sub> 2101, F<sub>1 </sub>2201, F<sub>1 </sub>2501 may be selected to develop heat tolerant tomato hybrid varieties for the farmers of sub-tropical regions.展开更多
文摘The study took place at Bangladesh Agricultural Research Institute’s Olericulture Division’s research farm from March 2021 to February 2022 (BARI). In a protected net house, we investigated the impact of five different types of vegetables on various maturation stages, including tomato, broccoli, sweet pepper, cucumber, and netted melon. Vegetables cultivated under protected conditions in a transparent poly-film net house can improve quality, maturity, fruit size, and yield. When fruits and vegetables are picked before they are fully mature, they may stay green for longer, but they may not ripen to a satisfactory color and flavor, resulting in a loss of consumer confidence. Furthermore, because fruit continues to grow until the harvest, immature fruit will be smaller than mature fruit, reducing harvest yield. We tried to determine the right maturation stages in order to avoid product loss during our investigation. The tomato was found to be an appropriate size (6.5 cm length and 6.2 cm diameter), weight (84 g), TSS (4.5 percent), pH (4.3), “turning red”, and “tasty” at the week 5 stage, while the broccoli was found to be an appropriate size (12.0 cm length and 13.0 cm diameter), weight (360 g), and “green” color at the week 5 stage. At the week 6 stage, the nettled melon was found to be of appropriate size (15.2 cm length and 14.5 cm diameter), weight (800 g), TSS (10.8 percent), pH (6.3), “net fully developed” on the fruit skin and “much tasty,” while cucumber was found to be of appropriate size (8.8 - 10.8 cm length and 2.2 - 2.9 cm diameter), weight (61 - 88 g), TSS (3.8 - 4.1 percent), pH (6.3), “less powdery”. As a result, establishing the optimal maturity of our research will benefit both consumers and growers.
文摘The study was conducted with 75 tomato entries at the farm of Olericulture Division, Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute (BARI), Gazipur, Bangladesh during the winter season of 2020-21 to evaluate insect and disease reaction. Among the various insect and diseases of tomatoes, the late blight, TYLCV, bacterial wilt infection and leaf miner, fruit borer infestation are most common in Bangladesh. The TYLCV infection was observed 0% to 27% infection, while 47 entries showed zero percent infection. The range of bacterial wilt infection was 0% to 10% and zero percent infection was observed in 62 entries. In case of leaf miner infestation and fruit borer infestation, the range was 0% to 43% and 0% to 10%, respectively. Considering tolerance to late blight, TYLCV, bacterial wilt infection and leaf miner, fruit borer infestation, fruit size, fruit shape, plant growth nature, cluster nature of fruit, type of fruit ten entries AVTO 1010, AVTO 1706, AVTO 1713, AVTO 1829, AVTO 1909, AVTO 1911, AVTO 1915, AVTO 1921, AVTO 1954 and SLA 011 were found zero percent late blight, TYLCV, bacterial wilt infection and leaf miner, fruit borer infestation. So, these ten entries can be selected for disease and insect tolerant tomato varieties development as well as developing disease and insect tolerant hybrid tomato varieties.
文摘An experiment was undertaken to identify suitable shade house for different high value vegetables during the winter season of 2019-20 at the research farm o</span><span style="font-family:Verdana;">f Olericulture Division, HRC, BARI, Gazipur</span><span style="font-family:Verdana;">. The experiment was randomized complete block design with 3 replications. Four vegetable varieties viz., tomato (V1), brinjal (V2), capsicum (V3), broccoli (V4) and 4 shading treatments</span> </span><span style="font-family:Verdana;">[1</span><span style="font-family:Verdana;">) UV stabilized polyethylene film with 60 mesh insect net along with green shade net (T1);</span><span style="font-family:Verdana;">2</span><span style="font-family:Verdana;">) UV stabilized polyethylene film with 60 mesh insect net (T2);</span><span style="font-family:Verdana;">3</span><span style="font-family:Verdana;">) 60 mesh insect net (T3) and </span><span style="font-family:Verdana;">4</span><span style="font-family:Verdana;">) Open field (control) (T4)] were included in this study. Different vegetables responded differently with the changes of shade house irrespective of different characters. Brinjal (V2) resulted </span><span style="font-family:Verdana;">in </span><span style="font-family:Verdana;">the maximum seed germination (93.58%) with </span><span style="font-family:Verdana;">the </span><span style="font-family:Verdana;">lowest</span><span style="font-family:Verdana;"> mortality (5.58%), in case of shading treatment, UV stabilized polyethylene film with 60 mesh insect net along with green shade net (T1) exhibited the maximum seed germination (94.83%) with lower mortality (3.33%). In case of combined effect, maximum seed germination (93.58%) and </span><span style="font-family:Verdana;">the </span><span style="font-family:Verdana;">lowest</span><span style="font-family:Verdana;"> mortality (2.08%) w</span><span style="font-family:Verdana;">ere</span><span style="font-family:Verdana;"> observed in V2T1. The tallest seedlings were produced in V3T1 at every growth stage (15 days, 20 days, 25 days, 30 days). The maximum no. of leaves was produced in V3T2. The minimum insect infestation was observed in V1T1, V1T2, V2T1, V2T2, V3T1, V3T2, V4T1, V4T2 (0.67% at 15 days and 20 days).
文摘The study was undertaken to identify the suitable mulch paper for different high-value vegetables during the winter season of November 2019 to March 2020 at the Olericulture research field of Bangladesh Agricultural Research Institute, Gazipur, Bangladesh. The study was a randomized complete block design with 3 replications. Four vegetable varieties viz., tomato, brinjal, capsicum and broccoli and 3 mulch treatments viz., T1 = Silver over black mulch;T2 = Black mulch;T3 = No mulch were included in this study. Different vegetables responded differently with the changes of mulches irrespective of different characters. it was clear that fruit number, average fruit weight, fruit length, fruit diameter were strongly related to soil moisture content. The effect of different plastic mulches on fruit weight per plant and yield (t/ha) was significant. Mulching produced higher fruit yield per plant and fruit yield per hectare than for the control, indicating that the mulch had a positive effect in generating increased fruit yield. Silver over black plastic mulch produced the highest fruit yield viz., 98.05 t/ha (tomato), 54.11 t/ha (brinjal), 34.33 t/ha (capsicum), 26.09 t/ha (broccoli) followed by black and no mulches, while the control plot produced the lowest fruit yield.
文摘In this study, the effects of different types of nethouses viz., NH1, NH2, and NH3, were investigated at the research farm of the Olericulture Division, Bangladesh Agricultural Research Institute (BARI) from Sep 2021 to Mar 2022 and compared to control (open field) in terms of the incidence of white fly, aphid, leaf miners, mites, and eggplant shoot and fruit borer (ESFB). This study included six vegetables 1) Tomato, 2) Eggplant, 3) Sweet pepper, 4) Broccoli, 5) Cucumber;6) Okra, as well as four nethouse treatments: 1) UV stabilized transparent polyethylene film with 60 mesh insect net along with green shade net (NH1);2) UV stabilized transparent polyethylene film with 60 mesh insect net (NH2);3) 60 mesh insect net (NH3);4) Open field infestation of white fly, aphid, leaf miners, mites, and ESFB was observed under open field conditions followed by NH1 conditions, while the lower infestation was observed in NH2 and NH3 for all vegetables. From the study, we found the use of stabilized transparent polyethylene film with a 60 mesh insect nethouse provided a negative effect on the presence of different types of notorious insects on vegetables. So, this type of protected nethouse will provide a new dimension to producing safe and quality vegetables in Bangladesh.
文摘The study was conducted with 75 tomato germplasm/lines at the farm of Olericulture Division, Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute, Gazipur, Bangladesh during the winter season of 2020-21 to evaluate the WorldVeg tomato germplasm. The days to first harvest were varied from 106 to 116 days while twelve lines were harvested within 106 - 108 days. The number of fruits per plant varied from 11.7 to 71.3, while the range of single fruit weight was 16.4 - 186.6 g. Fruit yield per hectare was 15.7 - 150.4 t/ha where the highest fruit yield per hectare was obtained from the lines AVTO 1702 (150.40 t/ha), followed by AVTO 1409 (126.54 t/ha), AVTO 1010 (120.60 t/ha), AVTO 1712 (111.33 t/ha), AVTO 1711 (107.23 t/ha). The range of fruit length was observed 2.07 to 6.8 cm, while the fruit diameter was 1.9 to 7.4 cm. The range of pericarp thickness was 0.14 to 0.8 cm, while the range of number of locule was 2.0 to 8.2. The range of TSS level was 2.0% - 8.2%, while the shelf life of the tomato lines was recorded 5.2 to 10.3 days. Considering earliness, quantitative and qualitative characters, eleven WorldVeg Center tomato lines AVTO 1010, AVTO 1315, AVTO 1409, AVTO 1711, AVTO 1712, AVTO 1713, AVTO 1717, AVTO 1907, AVTO 1911, AVTO 1915 and AVTO 1921 were found promising. So, these eleven lines can be selected for further confirmation.
文摘The study was conducted with 18 eggplant lines/variety at the farm of Olericulture Division, HRC, Bangladesh Agricultural Research Institute, Gazipur during the winter season of 2017-18 to develop new green type high yielding OP variety having tolerance to eggplant fruit and shoot borer and bacterial wilt. The lines varied significantly for their response to all characters (P SM 083F required minimum 105 days to first harvest. Maximum marketable fruit number was obtained by SM083A (30.33). Heavy sized fruit was harvested by SM275 (175 g), followed by SM289 (170 g), SM279 (169 g), SM083E (165 g), SM253 (164 g). The range of fruit infection by BFSB was 10.33% - 19.007%, while lowest in SM262 (10.33%). In case of bacterial wilt (BW) infestation at field level performance, zero percent incidence was observed in SM262, SM275, SM279, SM291B. The yield range of eggplant lines was 18.62 - 43.36 t/ha. The highest fruit yield was recorded from the line SM 275 (43.36 t/ha), which was statistically similar with which was statistically similar with SM 279 (39.85 t/ha), SM 291B (38.59 t/ha), SM083B (38.42 t/ha), SM 262 (38.17 t/ha), SM 253 (37.43 t/ha). Considering earliness, tolerance to fruit infection by BFSB, bacterial wilt infestation, attractive fruit shape and fruit colour, the lines SM 275, SM 279, SM 291B, SM083B, SM 262, SM 253 were found promising. So these six lines can be selected for further confirmation.
文摘The study was conducted at Olericulture Division, Bangladesh Agricultural Research Institute, Gazipur, Bangladesh during summer season of 2021 to see the performances of yield and yield-related components of twelve heat tolerant tomato hybrids. Significant variation was expressed for days to first harvest (101.0 - 108.0 days), while maximum number of fruits per plant was calculated in F<sub>1</sub> 2101 and F<sub>1</sub> 2201 (9.5), followed by F<sub>1</sub> 203, F1 2001, F<sub>1</sub> 2303, F<sub>1</sub> 2401 (9.0). The highest single fruit weight was estimated in F<sub>1</sub> 2501 (195.5 g), followed by F<sub>1</sub> 2101 (119.0 g), F<sub>1</sub> 2201 (113.8 g), while the range was 33.1 - 195.5 g. The range of fruit yield was 7.9 - 38.7 t/ha, while higher-yielding hybrids were viz., F<sub>1</sub> 203 (27.7 t/ha), F<sub>1</sub> 2101 (35.5 t/ha), F<sub>1</sub> 2201 (33.9 t/ha) and F<sub>1</sub> 2501 (28.7 t/ha). Maximum TSS was produced by F<sub>1 </sub>2501 (5.9%), followed by BARI Hybrid Tomato-8 (5.1%), F<sub>1</sub> 1101, F<sub>1</sub> 1903 (5.0%), with a range of 4.0% - 5.9%, while TYLCV infection and leaf sucking pest infestation varied from 0.0% - 10.0% and 3.3% - 16.7%, respectively. Thus, based on the performances of different yield and yield contributing traits, the hybrids, viz., F<sub>1</sub> 2101, F<sub>1 </sub>2201, F<sub>1 </sub>2501 may be selected to develop heat tolerant tomato hybrid varieties for the farmers of sub-tropical regions.
