عنوان
پدید آورنده
موضوع
رده
کتابخانه
محل استقرار
شماره کتابشناسی ملی
شماره
TLpq303679706
زبان اثر
زبان متن نوشتاري يا گفتاري و مانند آن
انگلیسی
عنوان و نام پديدآور
عنوان اصلي
Influence of temperature, moisture, and nitrogen on tillering of sorghum and pearl millet
نام عام مواد
[Thesis]
نام نخستين پديدآور
M. Saleem
نام ساير پديدآوران
G. L. Posler
وضعیت نشر و پخش و غیره
نام ناشر، پخش کننده و غيره
Kansas State University
تاریخ نشرو بخش و غیره
1988
مشخصات ظاهری
نام خاص و کميت اثر
161
یادداشتهای مربوط به پایان نامه ها
جزئيات پايان نامه و نوع درجه آن
Ph.D.
کسي که مدرک را اعطا کرده
Kansas State University
امتياز متن
1988
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
This study was conducted to examine the influence of temperature, moisture, and nitrogen on tillering of sorghum (Sorghum bicolor (L.) Moench) and pearl millet (Pennisetum americanum (L.) Leeke.) during initial growth and regrowth. Flux required to maintain a tiller per plant was determined and the influence of temperature, moisture, and nitrogen on this flux requirement was evaluated. The varieties evaluated were 'Trudan 8' hybrid sudangrass, 'DeKalb SX-17' hybrid sorghum-sudangrass, 'RS 610' grain sorghum, 'Wray' sweet sorghum, and 'Gahi-3' pearl millet. Varieties differed for tiller number within temperatures. Temperature did not affect tillers per plant within varieties during initial growth. Trudan 8 and DeKalb SX-17 produced the most tillers at all moisture levels. Tillers per plant decreased as moisture stress increased except for Wray and RS 610. Tillers per plant increased with higher nitrogen rates up to 90 kg N ha. Tillers per plant were linearly related to the daily rate of dry matter accumulation under different temperatures, moisture levels, and nitrogen rates in all varieties. These results are consistent with the hypothesis that each tiller requires a minimum flux of assimilate to maintain growth. Greater tillering varieties required less assimilate to sustain a tiller than lower tillering varieties. Flux required to sustain a tiller increased with increasing temperature for Gahi-3, while sorghums were unaffected. Flux requirement per tiller increased as moisture level increased but was not influenced by added nitrogen. N-use efficiency decreased as N rates increased. Water-use efficiency increased as available moisture level increased. Generally, varieties producing more dry matter used N and water more efficiently. In chamber studies, we found variation between growth chambers. A split-plot analysis was appropriate and accounted for variation among growth chambers, but a randomized complete block analysis ignored this variation and gave misleading conclusions.
موضوع (اسم عام یاعبارت اسمی عام)
موضوع مستند نشده
Agronomy
موضوع مستند نشده
Biological sciences
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )
مستند نام اشخاص تاييد نشده
G. L. Posler
مستند نام اشخاص تاييد نشده
M. Saleem
دسترسی و محل الکترونیکی
نام الکترونيکي
مطالعه متن کتاب وضعیت انتشار
فرمت انتشار
p
اطلاعات رکورد کتابشناسی
نوع ماده
[Thesis]
کد کاربرگه
276903
اطلاعات دسترسی رکورد
سطح دسترسي
a
تكميل شده
Y
