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Irrigation Decreases Loss of Leaf Nitrogen and Rubisco During Pod Development in Chickpea
Author(s) -
Pandey R.,
SharmaNatu P.,
Ghildiyal M. C.
Publication year - 2001
Publication title -
journal of agronomy and crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.095
H-Index - 74
eISSN - 1439-037X
pISSN - 0931-2250
DOI - 10.1046/j.1439-037x.2001.00518.x
Subject(s) - rubisco , point of delivery , agronomy , irrigation , biology , crop , nitrogen , photosynthesis , horticulture , botany , chemistry , organic chemistry
Chickpea ( Cicer arietinum L., var. Pusa 256) plants raised under unirrigated and irrigated field conditions showed a decrease in leaf nitrogen and soluble protein content after flowering during pod development. This was found to be associated with a decrease in Rubisco content after flowering. Leaf nitrogen, soluble protein and Rubisco content, however, were higher in irrigated than in unirrigated plants. The Rubisco content at the flowering and post‐flowering stages was 29.43 and 16.59 %, respectively, of leaf soluble protein in unirrigated plants. Under irrigated conditions, the Rubisco content was 49.91 and 37.99 %, respectively, at the flowering and post‐flowering stages. These results therefore indicated a decrease in the mobilization of leaf nitrogen by irrigation in chickpea. The findings are discussed in relation to the decrease in seed yield and harvest index by irrigation commonly observed in this crop under north Indian conditions.

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