Stability of Brinjal hybrids against fruit borer infestation in Gujarat

Dhruv Pankajkumar Joshi, NB Patel
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Abstract

Forty-eight Brinjal hybrids were evaluated along with their fourteen parents for fruit borer infestation at three different locations (environments) of Sardarkrushinagar Dantiwada Agricultural University; located in three different districts, during late rabi 2021-22 in RBD. The significant G × E interactions for fruit borer infestation revealed that the genotypes had linear response to environmental change, while significant pooled deviation suggested that deviation from linear regression also contributed substantially towards the differences in the stability of genotypes. Further, linear and non-linear components contributed significantly to the differences in stability among the genotypes tested. From the point of view of resistance to fruit borer infestation, three hybrids viz., Ph-9 × GAOB-2, ABSR-2 × GRB-5 and Arka Komal × GAOB-2 were identified as most widely adapted hybrids on the basis of stability parameters. Thus, these hybrids could be used for resistance breeding and for exploitation of hybrid vigour in Brinjal.
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古吉拉特邦茄子杂交种抗果螟的稳定性
在丹田农业大学3个不同地点(环境)对48个茄子杂交种及其14个亲本进行了果螟侵染评价;位于三个不同的地区,在2021-22年拉比后期在RBD。果螟侵染的显著G × E互作表明基因型对环境变化有线性响应,而显著的集合偏差表明偏离线性回归也是导致基因型稳定性差异的重要原因。此外,线性和非线性成分对所测基因型之间的稳定性差异有显著影响。从抗果螟侵染的角度来看,Ph-9 × GAOB-2、abrs -2 × GRB-5和Arka Komal × GAOB-2 3个杂交种的稳定性参数被确定为适应性最强的杂交种。因此,这些杂交种可用于茄子抗病育种和杂种优势的开发。
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