Correlation of larval population of Heliothis armigera with yield parameters of pigeonpea (Cajanus cajan)

被引：0
|
作者：
Khandwe, N [1 ]
Machwe, VG [1 ]
Khandwe, R [1 ]
机构：
[1] Jawaharlal Nehru Krishi Vishwa Vidyalaya, Zonal Agr Res Stn, Chhindwara 480002, Madhya Pradesh, India
来源：
INDIAN JOURNAL OF AGRICULTURAL SCIENCES | 1998年 / 68卷 / 04期
关键词：
Cajanus cajan; Heliothis armigera; correlation;
D O I：
暂无
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
An experiment was conducted during 1992 and 1993 to find out the correlation between Heliothis larval densities and yield attributing parameters of pigeonpea (Cajanus cajan (L.) Millsp.). There was a negative correlation between larval intensity and number of pods, grains and their weight while positive correlation with pod damage at green and dry stage. With an increase of one larva/plant there was a decrease of 4.95 green pods, 7.05 dry pods, 18.01 grains, 3.79 g pod and 2.05 g grain weight/plant, whereas pod damage increased 2.61 and 4.93% at green and dry stage respectively.
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页码：198 / 200
页数：3
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