Mono-cropping systems consisting of general low-yielding cereals are crucial productivity constraints in dry areas of the Mediterranean region.A crop rotation consisting of quinoa(Chenopodium quinoa Willd.)-wheat(Trit...Mono-cropping systems consisting of general low-yielding cereals are crucial productivity constraints in dry areas of the Mediterranean region.A crop rotation consisting of quinoa(Chenopodium quinoa Willd.)-wheat(Triticum aestivum L)-chickpea(Cicer arietinum)was compared with monocropping in the Mediterranean region of Turkey.A four year crop rotation trial was set up in Adana,Turkey.A total of nine crop rotation systems of Quinoa(Q),chickpea(L)and wheat(W)were considered in this study.The four year results revealed that there was significant difference in grain and biomass yields,but no significant difference in plant height,harvest index,and 1000 grain weight of wheat among the treatments in crop rotation except number of grains per spike and soil organic matter.Continuous wheat and chickpea-wheat-chickpea-wheat(LWLW)produced significantly greater grain yield in 2010/2011 and 2011/2012.QWLW and QWQW rotation produced significantly lower biomass yield in 2008/2009.The maximum biomass yield of LWLW rotation resulted in 2011/2012 growing season.Therefore,the effect of previous crop on wheat grain and biomass yield in the four years of the rotation study was significantly different.In the long run,the favorable effects of legume-based rotations on crop yields and water productivity are apparent.展开更多
Council for Scientific and Industrial Research<span style="font-family:;" "="">-</span><span style="font-family:;" "="">Savanna Agricultural Research...Council for Scientific and Industrial Research<span style="font-family:;" "="">-</span><span style="font-family:;" "="">Savanna Agricultural Research Institute (CSIR-SARI) in collaboration with University of California, Riverside phenotyped 300 Recombinant Inbred Lines (RILs) of Multi</span><span style="font-family:;" "="">-</span><span style="font-family:;" "="">parent Advanced Generation Inter-Cross (MAGIC) cowpea population from eight elite cowpea cultivars in Northern Ghana. Among the traits targeted in the phenotyping is extra early maturity suitable for Sudan Savanna agro ecological zone of Ghana. Ten selected extra early genotypes from the MAGIC population were intercropped with maize to identify genotype(s) that can maintain agronomic performances and grain yield. A field experiment was carried out at the Manga Station of SARI, Ghana during the 2018 and 2019 growing season to evaluate the ten extra-early cowpea genotypes in maize/cowpea intercrop. The experimental design used was split plot with three replications. The cropping patterns (row, strip and sole cropping) were assigned to the main plot. Ten cowpea genotypes (MAGIC 008, MAGIC 043, MAGIC 048, MAGIC 055, MAGIC 076, MAGIC 118, MAGIC 154, MAGIC 176, CB27, and SARC 1-57-2) were assigned to sub-plots. The results indicated that the number of seed per pod of the cowpea was not affected by cowpea genotype and intercrop pattern interaction;however, the interaction influenced grain yield, pod <span>per plant, plant height, 50% flowering and 100 seed weight of cowpea. MAGIC</span> genotypes, M008, M048, M055, M154, recorded higher grain yield under both strip intercropping and sole cropping. SARC1-57-2 also recorded the highest grain yield under row intercropping. M048, M055, M076, M176 and SARI’s collection SARC1-57-2 were the top five genotypes in fodder production. Intercropping advantage was compared with sole cropping. Land equivalent ratio greater than 1 was observed for all the genotypes with MAGIC 048 recording the highest LER at strip intercrop. Benefit Cost Ratio also showed that there is advantage of intercropping than sole cropping.</span>展开更多
基金support of the EU project ref.KBBE-2008-212337(SWUP-MED)Sustainable water use securing food production in dry areas of the Mediterranean region,which allowed carrying out these experiments.
文摘Mono-cropping systems consisting of general low-yielding cereals are crucial productivity constraints in dry areas of the Mediterranean region.A crop rotation consisting of quinoa(Chenopodium quinoa Willd.)-wheat(Triticum aestivum L)-chickpea(Cicer arietinum)was compared with monocropping in the Mediterranean region of Turkey.A four year crop rotation trial was set up in Adana,Turkey.A total of nine crop rotation systems of Quinoa(Q),chickpea(L)and wheat(W)were considered in this study.The four year results revealed that there was significant difference in grain and biomass yields,but no significant difference in plant height,harvest index,and 1000 grain weight of wheat among the treatments in crop rotation except number of grains per spike and soil organic matter.Continuous wheat and chickpea-wheat-chickpea-wheat(LWLW)produced significantly greater grain yield in 2010/2011 and 2011/2012.QWLW and QWQW rotation produced significantly lower biomass yield in 2008/2009.The maximum biomass yield of LWLW rotation resulted in 2011/2012 growing season.Therefore,the effect of previous crop on wheat grain and biomass yield in the four years of the rotation study was significantly different.In the long run,the favorable effects of legume-based rotations on crop yields and water productivity are apparent.
文摘Council for Scientific and Industrial Research<span style="font-family:;" "="">-</span><span style="font-family:;" "="">Savanna Agricultural Research Institute (CSIR-SARI) in collaboration with University of California, Riverside phenotyped 300 Recombinant Inbred Lines (RILs) of Multi</span><span style="font-family:;" "="">-</span><span style="font-family:;" "="">parent Advanced Generation Inter-Cross (MAGIC) cowpea population from eight elite cowpea cultivars in Northern Ghana. Among the traits targeted in the phenotyping is extra early maturity suitable for Sudan Savanna agro ecological zone of Ghana. Ten selected extra early genotypes from the MAGIC population were intercropped with maize to identify genotype(s) that can maintain agronomic performances and grain yield. A field experiment was carried out at the Manga Station of SARI, Ghana during the 2018 and 2019 growing season to evaluate the ten extra-early cowpea genotypes in maize/cowpea intercrop. The experimental design used was split plot with three replications. The cropping patterns (row, strip and sole cropping) were assigned to the main plot. Ten cowpea genotypes (MAGIC 008, MAGIC 043, MAGIC 048, MAGIC 055, MAGIC 076, MAGIC 118, MAGIC 154, MAGIC 176, CB27, and SARC 1-57-2) were assigned to sub-plots. The results indicated that the number of seed per pod of the cowpea was not affected by cowpea genotype and intercrop pattern interaction;however, the interaction influenced grain yield, pod <span>per plant, plant height, 50% flowering and 100 seed weight of cowpea. MAGIC</span> genotypes, M008, M048, M055, M154, recorded higher grain yield under both strip intercropping and sole cropping. SARC1-57-2 also recorded the highest grain yield under row intercropping. M048, M055, M076, M176 and SARI’s collection SARC1-57-2 were the top five genotypes in fodder production. Intercropping advantage was compared with sole cropping. Land equivalent ratio greater than 1 was observed for all the genotypes with MAGIC 048 recording the highest LER at strip intercrop. Benefit Cost Ratio also showed that there is advantage of intercropping than sole cropping.</span>
